Here's the connection info: I have a roadrunner modem plugged into a wired router. I also have x-box plugged into the router and 2 laptops that are wireless. all of these things are working fine. But.... when I plug my old computer into the router I can't get online with it. I've tried all of the different ports and the light is lit on the back of my computer. What have I done wrong??1 person needs an answerI do too